All ISEE Upper Level Quantitative Resources
Example Questions
Example Question #31 : Equations
Which is the greater quantity?
(a)
(b) 50
It is impossible to tell from the information given
(a) and (b) are equal
(b) is greater
(a) is greater
(a) and (b) are equal
By the commutative property,
By the multiplication property of equality,
By distribution,
Example Question #36 : How To Find The Solution To An Equation
is a positive number. Which is the greater quantity?
(a)
(b)
It is impossible to tell from the information given
(a) and (b) are equal
(b) is greater
(a) is greater
(b) is greater
If , then
If , then
If , then
Therefore, regardless of the value of , as long as is positive, , and (b) is greater.
Example Question #32 : Equations
Which is the greater quantity?
(a)
(b)
(b) is greater.
It is impossible to tell from the information given.
(a) and (b) are equal.
(a) is greater.
(b) is greater.
From the multiplication property of equality,
.
By distribution,
.
Example Question #33 : Equations
Which is the greater quantity?
(a)
(b)
(a) is greater.
(b) is greater.
(a) and (b) are equal.
It is impossible to tell from the information given.
(a) is greater.
Take the absolute value of both sides:
This makes (a) greater.
Example Question #39 : How To Find The Solution To An Equation
Which is the greater quantity?
(a)
(b)
(a) and (b) are equal.
(b) is greater.
It is impossible to tell from the information given.
(a) is greater.
(a) and (b) are equal.
(a)
(b)
Rewrite as a fraction:
Example Question #40 : How To Find The Solution To An Equation
Define as follows:
Which is the greater quantity?
(a)
(b)
(b) is greater.
(a) is greater.
(a) and (b) are equal.
It is impossible to tell from the information given.
(b) is greater.
(a) can be evaluated by using the definition of for positive :
can be evaluated by using the definition of for nonpositive :
Add:
(b) can be evaluated by using the definition of for nonpositive :
Example Question #41 : How To Find The Solution To An Equation
is defined as the greatest integer less than or equal to
is defined as the least integer greater than or equal to
; itself is not an integer.
Which is the greater quantity?
(a)
(b)
It is impossible to tell from the information given.
(a) is greater.
(b) is greater.
(a) and (b) are equal.
(a) is greater.
Let .
Then .
Since is a noninteger, and .
(a)
(b)
(a) is greater than (b).
Example Question #711 : Isee Upper Level (Grades 9 12) Quantitative Reasoning
Define and .
can be any real number.
Which is the greater quantity?
(a)
(b)
It is impossible to tell from the information given.
(b) is greater.
(a) and (b) are equal.
(a) is greater.
(b) is greater.
(a)
Substitute for :
(b)
Substitute for :
, so regardless of the value of , , and (b) is greater.
Example Question #42 : How To Find The Solution To An Equation
Veronica and Stephanie bought sweaters of the same type, but at different stores. Veronica bought hers for at Markham's; Stephanie bought hers for at Schuster's. Veronica got a better discount rate than Stephanie, and she has been bragging about it.
Which is the greater quantity?
(a) The price of the sweater at Markham's before discount
(b) The price of the sweater at Schuster's before discount
(a) and (b) are equal.
(a) is greater.
It is impossible to tell from the information given.
(b) is greater.
It is impossible to tell from the information given.
We show that the question cannot be answered with certainty by taking two sample cases.
Case 1: The sweaters cost at both stores.
Veronica saved and got a discount rate. Stephanie saved and got a discount rate.
Case 2: The sweater cost at Markham's and at Schuster's.
In this case Veronica saved and got a discount rate. Stephanie saved and got a discount rate of .
Example Question #43 : How To Find The Solution To An Equation
Define .
Which is the greater quantity?
(a)
(b)
(a) is greater.
(a) and (b) are equal.
(b) is greater.
It is impossible to tell from the information given.
(a) and (b) are equal.
(a)
(b)